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Chris,
You need to get a knob in your hangar…
the heck with the turbo! :>)
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Chris Barber
Sent: Wednesday, November 24, 2010
2:15 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Exhaust
Cut-out was [FlyRotary] Re: Friendsand Family....
Yeah Mark, a turbo....something to
polish on those lonely nights. Remember, you can always ask a friend to
help.
ok, enough Chris, you are being
sophomoric. DUH!
From: Rotary
motors in aircraft [flyrotary@lancaironline.net] on behalf of
Mark Steitle [msteitle@gmail.com]
Sent: Wednesday, November 24, 2010
1:09 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Exhaust
Cut-out was [FlyRotary] Re: Friendsand Family....
You ought to be ashamed to even suggest
such a thing! I would have thought that an EE would come up with a
more elaborate "electronic" solution, such as a noise
amplitude attenuation/cancellation/suppression system (NAACS), sort
of like a giant ANR headset that fits over the tailpipe. The whole
system would consist of one IC and a big speaker. You could spend the
next ten years developing it for TSO market.
On second thought, a cutout would be a
great solution, except that it kills power where you need it the most. I
may have to add a turbo-charger just to quiet the savage beast!
On Wed, Nov 24, 2010 at 12:11 PM, Ed
Anderson <eanderson@carolina.rr.com>
wrote:
Hi Mark, Chris and the rest - Happy
Thanksgiving - except for scrooge Chris of course {:>)
Mark, been thinking about your exhaust
conundrum - clearly the least exhaust back pressure is best for performance out
of your PP - however, as you have indicated the Wail of an unmuffered 20B PP
port might force you to get towed to 10,000 MSL before
turning on the engine to comply with noise abatement rules. Not a very
viable solution.
Got me to thinking about a similar
problem back in the Hot rod days. The solution was the
"cut-out" - simply a valve in the exhaust system that diverted the
exhaust through the muffler when the sound police were in near vicinity - and
then when all was safe (like Chris not being around {:>)), the valve was
switched to divert the exhaust down a straight pipe.
I'm wonder whether that might not be a
viable solution to having your cake and eating it also? For most of us
running stock or mild street ports - its probably not worth the effort, but in
you case it might be.
Here is a URL to cut-outs both
mechanically and electrically activated
Sent: Wednesday, November
24, 2010 11:51 AM
Subject:
[FlyRotary] Re: Friends and Family....
Well, you can always go out to the airport
and polish your turbo while you wait for your EC-2 to arrive. ;-)
If weather permits (and I get caught up on
the "honey-do's") I may venture down your way this weekend. But
before I fly again, I've got to get the EGT's hooked up after changing exhaust
system. No need for me to call, you'll be able to hear me doing
my runup at 50R. That will give you about a 45 minute warning. Are
you planning to be at the airport Saturday or Sunday?
Seriously, I'll call you in advance.
How do I find your hangar once on the ground? From the YouTube videos, it
appears that you've got more hangers at Ellington than Col. Sanders has chicken
coops. I'll need a road map to find your hangar.
On Wed, Nov 24, 2010 at 10:29 AM, Chris Barber <cbarber@texasattorney.net>
wrote:
FINE, I guess it is obvious that a
holiday that focuses on friends and family is more important than tending to
your aviation project and posting your progress, discoveries and insight
here. NO PROBLEM. We see where your loyalties lie and it is
certainly NOT helping satisfy my 'fix" of rotary knowledge, otherwise the
silence would not be as deafening as an un-muffled 20b at full
song.
Go ahead, eat your turkey, watch the
Cowboys get beat, fall asleep with that evening cocktail dangling from your
hand. I can wait....... I will be thinking of you all as I
"serve and protect" while other officers, as well as all of
you, enjoy the day with their families. I will be checking the list
with disappointment as no new emails get posted. Heavy sigh.
Oh, and Happy Thanksgiving. ;-)
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